DrawingAttributes.Transparency 屬性

取得或設定值，這個值表示「筆墨」的透明度值。

命名空間： Microsoft.Ink
組件： Microsoft.Ink (在 Microsoft.Ink.dll 中)

語法

'宣告
Public Property Transparency As Byte
'用途
Dim instance As DrawingAttributes
Dim value As Byte

value = instance.Transparency

instance.Transparency = value

public byte Transparency { get; set; }

public:
property unsigned char Transparency {
    unsigned char get ();
    void set (unsigned char value);
}

/** @property */
public byte get_Transparency()
/** @property */
public  void set_Transparency(byte value)

public function get Transparency () : byte
public function set Transparency (value : byte)

屬性值

型別：System.Byte
值，表示「筆墨」的透明度值。

值	意義
0	預設值。筆墨完全不透明。
0-255	透明度的值可以從完全不透明 (0) 到完全透明 (255)。

備註

注意事項：
透明呈現效果在動態和靜態的呈現可能不同。在動態呈現時，Stroke 物件會在繪製時呈現。例如，就像它在 InkCollector.DynamicRendering 屬性中一樣。在靜態呈現時，您要使用 Renderer 物件的 Draw 方法來呈現 Stroke 物件。

範例

這個 C# 範例會為功能表項目建立可變更 DrawingAttributes 物件之 Transparency 屬性的事件處理常式。

using Microsoft.Ink;
//...
    private System.Windows.Forms.MenuItem menuInkTransparencyOpaque;
    private System.Windows.Forms.MenuItem menuInkTransparencyLight;
    private InkCollector theInkCollector;
    private System.Windows.Forms.MenuItem checkedTransparency;

//...
    private void menuInkTransparencyOpaque_Click(
    object sender, System.EventArgs e)
    {
        checkedTransparency.Checked = false;
        // Set the transparency to opaque
        theInkCollector.DefaultDrawingAttributes.Transparency = 0;
        checkedTransparency = menuInkTransparencyOpaque;
        checkedTransparency.Checked = true;
        Refresh();
    }

    private void menuInkTransparencyLight_Click(
    object sender, System.EventArgs e)
    {
        checkedTransparency.Checked = false;
        // Set the transparency to about 90%
        theInkCollector.DefaultDrawingAttributes.Transparency = 220;
        checkedTransparency = menuInkTransparencyLight;
        checkedTransparency.Checked = true;
        Refresh();
    }

這個 Microsoft® Visual Basic® .NET 範例會為功能表項目建立可變更 DrawingAttributes 物件之 Transparency 屬性的事件處理常式。

Imports Microsoft.Ink
'...
    Dim MenuInkTransparencyOpaque As System.Windows.Forms.MenuItem
    Dim MenuInkTransparencyLight As System.Windows.Forms.MenuItem
    Dim CheckedTransparency As System.Windows.Forms.MenuItem
    Dim theInkCollector As InkCollector
'...
    Private Sub MenuInkTransparencyOpaque_Click( _
    ByVal sender As Object, ByVal e As System.EventArgs)
        CheckedTransparency.Checked = False
        'Set the transparency to opaque
        theInkCollector.DefaultDrawingAttributes.Transparency = 0
        CheckedTransparency = MenuInkTransparencyOpaque
        CheckedTransparency.Checked = True
        Refresh()
    End Sub

    Private Sub MenuInkTransparencyLight_Click( _
    ByVal sender As Object, ByVal e As System.EventArgs)
        CheckedTransparency.Checked = False
        'Set the transparency to about 90%
        theInkCollector.DefaultDrawingAttributes.Transparency = 220
        CheckedTransparency = MenuInkTransparencyLight
        CheckedTransparency.Checked = True
        Refresh()
    End Sub